[llvm] [LSR] Make OptimizeLoopTermCond able to handle some non-cmp conditions (PR #165590)

[Nikita Popov via llvm-commits]

nikic wrote:

I'm trying to understand this code, and I'm not super clear why these preconditions are necessary at all. If IVIncInsertPos is later chosen as the NCD of the uses, doesn't the position of the use not matter?

https://github.com/llvm/llvm-project/pull/165590